| Payment Type: | L/C,T/T,D/P |
| Incoterm: | FOB,CFR,CIF,EXW |
| Transportation: | Land,Air,Ocean,Others |
| Port: | Tianjin,Qingdao,Shanghai |
Model No.: API 5CT J55
Standard: Astm, Aisi, Din, En
Place Of Origin: China
Species: Seamless
Certification: Iso, Sgs
Weld Shape: Seamless
Tolerance: ±1%
Processing Service: Bending, Welding, Decoiling, Punching, Cutting, Moulding
Thickness: Sch10-----Sch160
Od: 13.72 mm - 914.4 mm
Size Range: 1/8 Inch-----6 Inch
| Selling Units | : | Ton |
| Package Type | : | Standard sea export packing or as required |
| Picture Example | : |
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Product Description:
The oil casing is a steel tube used to support the well wall of oil and gas Wells to ensure the normal operation of the whole well during the drilling process and after completion. Several layers of casing are used for each well, depending on the drilling depth and geology. Cement is used for cementing after casing well. Unlike tubing and drill pipe, cement can not be reused and belongs to disposable consumption material. As a result, casing consumption accounts for more than 70% of all well tubing.
Casing can be divided into: conduit, surface casing, technical casing and reservoir casing.
Special petroleum pipe is mainly used for drilling oil and gas Wells and oil and gas transportation. It includes oil drilling pipe, oil casing, extraction pipe. The oil drill pipe is used to connect the drill collar to the drill bit and transfer drilling power. The oil casing is mainly used to support the well wall during drilling and after completion to ensure the drilling process and the normal operation of the whole oil well after completion. The suction pipe mainly conveys oil and gas from the bottom of the well to the surface.
According to the strength of steel itself, casing can be divided into different steel grades, namely J55, K55, N80, L80, C90, T95, P110, Q125, V150, etc. Well conditions, different depths, the use of steel grade is also different. In corrosive environment, the casing itself is required to have corrosion resistance. In the complex geological conditions, it is also required that the casing has anti-collapse performance.
| Product Name | Seamless Line Pipe |
| Standard | ASTM A106,API 5L,ASTM A53,DIN 17175,EN 10208-1/2,GB/T 9711 |
| Grade | ASTM A106/A53/API 5L Gr.B X42,X46,X52,X56,X60,X65/DIN 1629/2448/17175/JIS G3454/G3455/G3456/EN 10210/10216/10297/BS 3059/3601/6323 |
| Outer diameter | 10-1400mm or customized as required |
| Thickness | 2-150mm or customized as required |
| Width | 3-12m or customized as required |
| Surface treatment | Bare,Painting black,varnished,galvanized,anti-corrosion 3PE PP/EP/FBE coating |
| Technical Methods | Hot-rolled/Cold-drawn/Hot-expanded |
| Testing Methods | Pressure test,Flaw detection,Eddy current testing, Hydro static testing or Ultrasonic examination and also with chemical and physical property inspection |
| MOQ | 1 Ton |
| Processing service | Bending, Welding, Decoiling, Punching, Cutting |
| Transport package | Standard sea export packing or as required |
| Payment terms | T/T,L/C |
| Loading port | Tianjin/Qingdao/Shanghai Port |
| Application | 1. Automotive and mechanical pipes. 2. Petroleum cracking pipes. |
| Export market | Europe, Africa, Central Asia, Southeast Asia, Middle East, South America, North America, etc |
| Advantages | 1.Reasonable price with excellent quality 2.Abundant stock and prompt delivery |
Chemical compositions of casing pipe
| Standard | Grade | Chemical compositions(%) | |||||||||
| API SPEC 5CT | J55 | C | Si | Mn | P | S | Cr | Ni | Cu | Mo | V |
| | K55 | 0.34~0.39 | 0.20~0.35 | 1.25~1.50 | ≤0.020 | ≤0.015 | ≤0.15 | ≤0.20 | ≤0.20 | / | / |
| | N80 | 0.34~0.38 | 0.20~0.35 | 1.45~1.70 | ≤0.020 | ≤0.015 | ≤0.15 | / | / | / | 0.11~0.16 |
| | L80 | 0.15~0.22 | ≤1.00 | 0.25~1.00 | ≤0.020 | ≤0.010 | 12.0~14.0 | ≤0.20 | ≤0.20 | / | / |
| | P110 | 0.26~0.395 | 0.17~0.37 | 0.40~0.70 | ≤0.020 | ≤0.010 | 0.80~1.10 | ≤0.20 | ≤0.20 | 0.15~0.25 | ≤0.08 |
Mechanical properties of casing pipe
| Grade | Type | Total elongation under load (%) | Yield strength (min)Mpa | Yield strength (max)Mpa | Tensile strength min Mpa | Hardness Max (HRC) | Hardness Max (HBW) |
| J55 | - | 0.5 | 379 | 552 | 517 | - | - |
| K55 | - | 0.5 | 379 | 552 | 655 | - | - |
| N80 | 1 | 0.5 | 552 | 758 | 689 | - | - |
| N80 | Q | 0.5 | 552 | 758 | 689 | - | - |
| L80 | 1 | 0.5 | 552 | 655 | 655 | 23 | 241 |
| L80 | 9Cr | 0.5 | 552 | 655 | 655 | 23 | 241 |
| L80 | 13Cr | 0.5 | 552 | 655 | 655 | 23 | 241 |
| C90 | - | 0.5 | 621 | 724 | 689 | 25.4 | 255 |
| C95 | - | 0.5 | 655 | 758 | 724 | - | - |
| T95 | - | 0.5 | 655 | 758 | 724 | 25.4 | 255 |
| P110 | - | 0.6 | 758 | 965 | 862 | - | - |
| Q125 | All | 0.65 | 862 | 1034 | 931 | - | - |
Packaging And Transportation
1) Packaging: 3 layers of packing. Inside is craft paper, Middle is water plastic film and outside GI steel sheet to be covered by steel strips with lock, with inner coil sleeve or as customers' requirements.
2) Shipping: We have long-term cooperation with many experienced shipping companies and will find the most suitable mode of transportation for you.
3) Trade terms: FOB/CIF/CFR
4) Shipping port: Qingdao/Tianjin/Shanghai
5) Shipment: A: Length: ≤6m, loaded in 20GP Container. B: Length: ≤12m, loaded in 40GP Container.
Remark: Size of 20GP Container (inside :5898*2352*2393mm); Size of 40GP Container (inside:12032*2352*2393mm); Size of 40HQ Container (inside:12032*2352*2698mm).
6) Delivery time: Normal size: 7-15days send from warehouse directly. Special size:15-30days custom made for you.
Contact us If you have any question, please feel free to contact me by the email or telephone! Mainly products cover Carbon Steel Pipe, Galvanized Steel Pipe, Seamless Steel Pipe, Square Steel Pipe, Honed Steel Tube, Special-shaped Steel Pipe, Galvanized Iron Wire and Steel Angle, H-Beam, Flat Steel, Round Steel, Channel Steel, etc.
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